Precise CFM Meter Handheld HVAC Anemometer - 0.001~100mph Wind Speed Velocity Airflow Tester Gauge with Wind Temperature, Air Volume， Backlight Display

AIOMEST Precise CFM Meter Handheld HVAC Anemometer - Air Flow Tester Measure 0.001~100mph Wind Speed/Air Velocity Airflow Volume, Professional CFM Gauge AI-846A with Anemometro Case

Manometer, Professional Air Pressure Meter, Dual-Port HVAC Digital Manometer Gas Pressure Tester,12 Selectable Units Differential Pressure Gauge, (Included Battery)

BTMETER BT-100 Handheld Anemometer, Digital Wind Speed CFM Meter Gauge Air Flow Velocity Tester for HVAC Shooting Drone, Wind Chill, 14℉-113℉ Wind Temperature